That's a pretty huge can of worms to open.
The varied interpretation of these and related colloquial chronological phrases has damn near resulted in divorce proceedings with Mrs Igor.
Speaking as a physicist, I contend that "THIS Tuesday" is the Tuesday of THIS week and may be in the past or in the future. From this, it logically follows that "NEXT Tuesday" MUST be in the NEXT week.
Of course there also has to be further agreement on the first day of the week when talking about this Sunday.
Calling Dr Streetmentioner...